Electronic Device and Method for Receiving Geo-Fence Service with Low Power Consumption

1. A method for use by an electronic device receiving a geo-fence service, comprising: if a serving cell information is changed, switching to a wake-up mode from an idle mode, wherein the idle mode consumes less power than the wake-up mode; in response to switching the wake-up mode from the idle mode, determining whether a current position of the electronic device determined using a cellular positioning system (CPS) is located within a first distance from a central point of a geo-fence service area; if it is determined that the current position is located within the first distance, determining whether the current position is located within a second distance from the central point of the geo-fence service area in which the second distance is closer from the central point of the geo-fence service area than the first distance using a Wi-Fi positioning system (WPS); in response to the determination the current position is located within the second distance, determining whether the current position calculated using a global positioning system (GPS), is located within a boundary of the geo-fence service area; and if it is determined that the current position is located outside the first distance, switching the idle mode from the wake-up mode.

2. The method of claim 1 , further comprising: determining whether the serving cell information of a cell Previously serving information to the electronic device matches an item of cell information of one or more base stations located within the geo-fence service area; and in response to a match, displaying information indicating that the electronic device is located within the geo-fence service area.

3. The method of claim 1 , further comprising: determining whether the serving cell information matches an item of cell information of one or more base stations located within the geo-fence service area; and in response to an absence of a match, indicating that the serving cell information does not match.

4. The method of claim 1 , further comprising: switching to an idle mode when it is determined that the current position is located outside of the first distance; in the idle mode, determining whether the serving cell information is changed; and in response to a determined change, switching to a wake-up mode from the idle mode.

5. The method of claim 1 , further comprising, in response to determining that the current position calculated using the WPS is located outside of the second distance, repeatedly performing step (1).

6. The method of claim 1 , further comprising, in response to determining that the current position calculated using the GPS is located outside of a boundary of the geo-fence service area, repeatedly performing step (2).

7. The method of claim 1 , further comprising, in response to determining that the current position calculated using the GPS is located within the boundary of the geo-fence service area, displaying information indicating that the electronic device is located within the geo-fence service area.

8. An electronic device which receives a geo-fence service, comprising: one or more processors; a communication module; a memory; and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for: if a serving cell information is changed, switching to a wake-up mode from an idle mode, wherein the idle mode consumes less power than the wake-up mode; in response to switching the wake-up mode from the idle mode, determining whether a current position calculated using a cellular positioning system (CPS) is located within a first distance from a central point of a geo-fence service area, if it is determined that the current position is located within the first distance, determining whether the current position is located within a second distance from the central point of the geo-fence service area in which the second distance is closer from the central point of the geo-fence service area than the first distance using a Wi-Fi positioning system (WPS), in response to the determination the current position is located within the second distance, determining whether the current position calculated using a global positioning system (GPS), is located within a boundary of the geo-fence service area, and if it is determined that the current position is located outside the first distance, switching the idle mode from the wake-up mode.

9. The electronic device of claim 8 , further comprising a touchscreen, and wherein the one or more programs further comprises instructions for: displaying, on the touchscreen, information indicating that the electronic device is located within the geo-fence service area in response to determining that serving cell information matches an item of cell information of one or more base stations located within the geo-fence service area, determining whether the serving cell information matches an item of cell information of one or more base stations located within the geo-fence service area.

10. The electronic device of claim 8 , wherein the one or more programs further comprises instructions for determining whether serving cell information matches an item of cell information of one or more base stations located within the geo-fence service area, and in response to an absence of a match of the serving cell information and the base station cell information, indicating the absence of a match.

11. The electronic device of claim 8 , wherein the one or more programs further comprises instructions for switching to an idle mode and determining whether serving cell information is changed in response to determining that the current position is located outside of the first distance, switches to a wake-up mode from the idle mode in response to determining that the serving cell information is changed, and repeatedly performing determination of whether the current position calculated using the CPS is located within the first distance from a central point of the geo-fence service area.

12. The electronic device of claim 8 , wherein the one or more programs further comprises instructions for repeatedly performing determination of whether the current position calculated using the CPS is located within the first distance from the central point of the geo-fence service area in response to determining that the current position calculated using the WPS is located outside of the second distance.

13. The electronic device of claim 8 , wherein the one or more programs further comprises instructions for repeatedly performing determination of whether the current position calculated using the WPS is located within the second distance from the central point of the geo-fence service area in response to determining that a current position calculated using a GPS is located outside of a boundary of the geo-fence service area.

14. The electronic device of claim 8 , further comprising a touchscreen, and wherein the one or more programs further comprises instructions for displaying, on the touchscreen, information indicating that the electronic device is located within the geo-fence service area when it is determined that the current position calculated using the GPS is located within the boundary of the geo-fence service area.